def yanghui(t):
    print([1])
    line =[1,1]
    print(line)
    for i in range(2,t):
        r =[]
        for j in range(2,t):
            r =[]
            for j in range(0,len(line)-1):
                r.append(line[j]+line[j+1])
            line = [1] + r + [1]
            print(line)